Fire-box stay-bolt for locomotive and other boilers.



.LiE'Y, NEW' YGRK, ASSIGNOB, TO KERNER. MANUFAG- T310121, EEHN'SYL'VANIA, .52. CORPORATION OF PENN- FE'IR-E-BQEL'. STATbBGLLT LOCOMGTIVE AND OTHER BOILERS,

g Specification of Letters hatent. iih tgntg J fly 13, "1

Application filed Uotobsr 13, 1911, Serial NmSSeLGOS.

port oi this; sp-: ci"'. n;aoii in whii 1- Figure 1. is z: shin ohmiiion of o: 0 form on. hoii; ii'ni.)(')iiffii'lgl; my invenii m; Fig. i, is

:1 siiniins View oi" hoiii oi him some genoi'ni chin-min? us that shoi i'nin Fig. 1. wih

n odiiiwi form of securing moons; Fig". 3 is 2| sectional .iGW on. th s iino H Y of .ii'ig's. 1 and 2; Fig. -iis ii on...- ehnzition of anothm' inoihi'mi for n of shay ooh); Fig. 5? 1S :1. secl, 1 r i 1 V "V -i-' Wo' z loni Hui on E11; i 01 L1... r, l 4 i iinn r r h L 1g. L; a. Mic a. whom 01 lniouini 01111 "121i View on tho iino simihi' to 7. Show 7 horiion oi ti o hoh: in is a. shieoiov: tion o and Fig. 13' f x? of the h .iiown in y invention is; to nrovixie amster which is chomp oi ich imnhiy phmmi in po- I yonsaio for ii. inovomont mi ho'ior shie't. which. are uonnooimi to ezioh other by means of :1. stay bolt 3 havinga bociy portion twisi (i 215- indicated. it The ends of this ho iiy portion rm hoods wh'oh are .a "(i at and are ororieii orifices in ih so hoods is provided with wronoh seats (3, mo 0; which 9 mo views 'czitoii at 1.9.

oceivo tho mvmhors 21, 22, 23 and 24. wh'

25 designates a moi;

hood 12. which adapted to engage a shoui-i 'ihu'oli as; in ii fated at M in order to permit i tho hoit and homito vibrato within bushing.

in 1* 1g. 4, A.

10: simihu' to that shown in. Fig.1. 2 with. the oxceptlon that the body 13 18 formed hihuhu shock. i

have shown 21 oonsii'iiofi in this construction hie bod}:

of tho bolt is him provided with a phn'nii? oi twiss as indicated z; 1-4. The heads;

tho hoit shown in Figs. 2 and 4 n pi'ovid w'th noichos- 1G for the reception of for sooin'ing the hoifs in position.

in Figs. 6 -7, 8 and S), I ham shown any (who? nioiiifieii form of hoit of i'coiiziiifzihi cross soviion, and in which one portion o the body is :1 an angle to another portion thin-(inf.

in Figs. 10 and 11, I have shown still amoihvimodified form in which tho hoziy i omnmi of stock oi circularcross'sootion. and in which i hnv forged rectangular portionc; iiiii'fiiifiilffliil the length of tho hody as indiv: iivii iii) 25); the "forged portions being :11: iii": ungzio with miation to each othoi'. in th' ironstrimtion one end of the bolt is provii'i wiih :1 screw threaded head 5, which in :uiupteri to engage :1. screw-thrombi orii'i o in shoshoot one, while the other and s wow-5hromieii; hc outer (hoinohnoi ihf-oix thivm-is being of the .nmo'dimnotm. as: ii-o diuniotoiof. tho body of the hoit. as

29 a socket memh'zniHU'iYl snrow threaded and 30,'which :uiapiimi engage screw threads in an Olififl, in zh shoot This socket member is provh oo with :i s'phei'imi recess which is nz'i'nngzoii it.

form :1. sootiomii nut.

having projections 20, which are adapted iooseiy #ng'ugo projections 27 on the ($23}? 29. i This iiovioo is assembled as foiiowm iho members 21 to 2 am. first insm'tmi in iho recess; in the bushing i); the nut 25 is then scrowewi on to 'iho thi'muiod'ond oi the hoi :i iiihiilli!) oquui to [he distance. hofiwvon itho not 27 mini ti o mvmhors 31 to 524. Tho om oi' ihe hois is thon insr-rimi into tho HIOIfiiKBIH 21 to H Hih'i tho bolt is survived homo into the nut 25 and tho mumhers 21 to The Whole bolt is then inserted through the opening in plate 1 and the threads on the end of the member 29 are entered into the threads in the opening in the plate 2, and at the same time, the threads on the other head are entered in the threaded opening in the sheet 1. The Whole device is then rotated to screw the bolt into position.

The advantages of my invention result from the provision of a stay bolt having a body which is of greater Width than thick ness', and in which one portion of the body is at an angle to another portion thereof to permit the bolt to yield tocOmpensate for the shifting of one plate with relation to the other. i

I claim:

1. A stay-bolt having a body portion of greater Width than thickness, the parallel faces of the body portion at one point being parallel to the similar faces of the body portion at another point of the body and innil i eal termediate portions of the parallel faces being at an angle thereto, and securing means on the ends of said bolt, substantially as described. I

2. A stay-bolt having a body portion of greater Width than thickness, a securing head on each end of the body portion, said body portion being twisted at least 180 degrees about the longitudinal axis of the bolt, substantially as described.

3. A stay-bolt having threaded end portions and an intermediate portion of greater width than thickness, said. portion being twisted" helically through at least 180 degrees and the twist extending from the termination of the thread of one head to the beginning of the thread of the other head, sul'istantially as described. A v

ETI-IAN I. DODDS. Witnesses S. J. GENSLER,

M. FRIEDMAN. 

